Timken 51101-2RS Bearing — Specifications, Dimensions & Cross-Reference

The Timken 51101-2RS is a thrust ball bearing double rubber sealed manufactured by Timken. It belongs to the 51100 series and features dimensions of 12 × 26 × 9 mm (bore × OD × width). This bearing has a dynamic load rating of 8,710 N and a static load rating of 5,730 N, making it suitable for light-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)12 mm
Outside Diameter (D)26 mm
Width (B)9 mm
Weight0.022 kg
Performance
Dynamic Load Rating (Cr)8,710 N
Static Load Rating (C₀r)5,730 N
Limiting Speed (Grease)10,000 rpm
Limiting Speed (Oil)13,000 rpm
💡 Application Note: The 51100 series bearings are commonly used in automotive steering mechanisms, machine tool tables, and applications with pure axial loads. The -2RS suffix indicates double rubber contact seals, providing excellent protection against dust, moisture, and contaminants — ideal for harsh operating environments.

Brand Cross-Reference — 51101-2RS Equivalents

The following bearings from other manufacturers are interchangeable with the Timken 51101-2RS. All share identical dimensions (12×26×9mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
TimkenTimken 51101-2RS ✦8,7105,730
SKF SKF 51101-2RS 8,710 5,730
NACHI NACHI 51101-2RS 8,710 5,730
KOYO KOYO 51101-2RS 8,710 5,730
Timken Timken 51101-2RS 8,710 5,730
FAG FAG 51101-2RS 8,710 5,730
NSK NSK 51101-2RS 8,710 5,730
NTN NTN 51101-2RS 8,710 5,730
SKF SKF 51101-2RS 8,710 5,730

Available Variants

The Timken 51101 base bearing is available in these configurations:

Timken 51101-ZZ-C3
"Double shielded
Timken 51101-ZZ
Double metal shielded
Timken 51101-NR
Open with snap ring
Timken 51101-2Z
Double metal shielded (ISO)
Timken 51101-2RS-C3
"Double sealed
Timken 51101
Open (no seal/shield)
Timken 51101-NR
Open with snap ring
Timken 51101-ZZ-C3
Double shielded, C3 clearance
Timken 51101-2RS-C3
Double sealed, C3 clearance
Timken 51101-C3
Open, C3 clearance
Timken 51101-2Z
Double metal shielded (ISO)
Timken 51101-ZZ
Double metal shielded
Timken 51101-2RS
Double rubber sealed
Timken 51101
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the Timken 51101-2RS?

The Timken 51101-2RS has a bore diameter of 12mm, outside diameter of 26mm, and width of 9mm. It weighs 0.022kg.

What is the load capacity of the Timken 51101-2RS?

The dynamic load rating (Cr) is 8,710 N and the static load rating (C₀r) is 5,730 N. The maximum recommended speed is 10,000 rpm with grease lubrication or 13,000 rpm with oil lubrication.

What bearings are equivalent to Timken 51101-2RS?

The 51101-2RS is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 12×26×9mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.